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Pricelist: Retail Price (B2C) Pricelist
20x3mm Neodymium Disc Magnet N35 Grade Super Strong Rare Earth Magnet

20x3mm Neodymium Disc Magnet N35 Grade Super Strong Rare Earth Magnet

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ComponentSpecification
Magnet TypeNeodymium (NdFeB)
ShapeDisc / Button
Diameter20mm
Thickness3mm
GradeN35
CoatingNickel-Copper-Nickel (Ni-Cu-Ni)
MagnetizationAxial (Through Thickness)
Price
₹ 67.80 ₹ 67.80
(Tax included)

Barcode: 3781370

Product Description The 20mm x 3mm Neodymium Disc Magnet is a high-performance rare-earth magnet that offers a powerful magnetic pull in a sleek, low-profile design. With a 20mm diameter, it provides a large surface area for a secure grip, while the 3mm thickness ensures it remains discreet for mounting and cabinetry. Each magnet is protected by a triple-layer Ni-Cu-Ni coating, which provides a smooth, shiny finish and superior resistance to corrosion.

Key Features

  • Strong Holding Power: N35 grade neodymium provides a high weight-to-pull ratio, suitable for heavy-duty latching.

  • Low Profile: The thin 3mm height allows for seamless integration into recessed holes or flat surfaces.

  • Durable Plating: Triple-layered nickel coating prevents oxidation and protects the brittle magnetic core.

  • Axial Magnetization: North and South poles are on the flat circular faces, making them perfect for stacking or pairing.

  • Versatile Application: Widely used in robotics, furniture manufacturing, and high-end DIY hobby projects.

Technical Details

  • Material: Sintered NdFeB.

  • Max Operating Temp: 80°C.

  • Tolerance: ±0.1mm.

Prototyping and Engineering Tips from Robogears

  • Magnetic Door Latches: These are the ideal size for cabinet door catches. You can recess one into the door and another into the frame for a strong, "click-free" closure that stays hidden.

  • Surface Preparation: If you are gluing these to a surface, ensure it is clean and dry. Use a high-strength epoxy or specialized magnetic adhesive for the best bond, as the high pull force can sometimes pull the magnet off the glue.

  • Stacking for Strength: If you need a deeper magnetic reach, you can stack two or more of these discs. Stacking increases the magnetic flux density, essentially turning them into a thicker, more powerful magnet.

  • Handle with Care: Neodymium is a brittle material. Avoid snapping two magnets together from a distance, as the impact can cause them to chip or shatter. Always slide them apart or use a non-magnetic separator.

Package Includes

  • 1 x 20mm x 3mm Neodymium Disc Magnet

Disclaimer Images are for reference; actual dimensions may vary slightly by production batch. SAFETY WARNING: Keep away from children (swallowing hazard), pacemakers, and sensitive electronics like credit cards or mechanical watches.